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' (l ioModelJ I. G. JOHNSON 817R. W. HOW.

Tub.

Patented Aprill2,l88 l W INVENTORS.

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UNITED STATES PATENT Fries- FRANK JOHNSON AND RICHARD W. HOW, OF BROOKLYN NEW YORK.

TUB.

SPECIFICATION forming part of Letters Patent No. 240,026, dated April 12, 1881. Application filed August 19, 1880. (No model.)

To all whom it may concern:

Be it known that we, FRANK G. JOHNSON and R. W, HOW, both of the city of Brooklyn,

in the county of Kings and State of New York, have invented new and useful Improvements in Tubs, which improvements are clearly set forth in the following specification, reference being had to the accompanying drawings.

The objects of our invention are to provide an air-tight tub for packing, preserving, and transporting butter, lard, &c., made and covered in such a manner that it can be repeatedly and readily opened and closed, and made absolutely tight each time it is closed, for the better preservation 'of butter, lard, 850., than it is possible to do in tubs which are not airtight.

A further object of our invention is to so arrange the closing device as to be able to conveniently seal with wax or other suitable material the clamping apparatus which secures the cover to the tub, to prevent the possibility of removing the cover without leaving the evidence of its having been removed.

Figure l is a perspective view. Fig. 2 is an elevation, showing, in part, a vertical section.

Fig. 3 is apartial verticalseotion, to show the relation to each other of the tub, cover, and binding-hoop. Fig. 4 is a perspective of a part of the fastening device. Figs. 5 and 6 are a partial view of the cover, to illustrate the method of removing the cover from the tub when released. Fig. 7 illustrates the manner of sealing the fastening with wax.

A is a tub, on which none of the fixed or stationary hoops are placed above the line midway from the bottom to the top of the tub,

in order to allow the top of the staves to spring apart to relieve the cover B when the ad- 40 justable hoop O is slackened. On the inside of the top of the staves we cut a rabbet, a, as deep vertically as the thickness of the cover and sufficiently deep' transversely to form a stop to the cover. The rabbet a is cut slightly dovetail shape, so that it is a little deeper at the bottom than at the top, so that when the staves are clampedtightly against the cover it (the cover) cannotpossiblybe removed until the staves are again liberated by slackening the adjustable hoop G. Opposite to the rabbet a, on

the outside of the tub, near the top of the staves,

is cut a depression or recess, 0 c, to receive the adjustable binding-hoop'G. The cover B is a plain disk, being flush with the top of the staves. To facilitate the removal of I the cover when liberated from the staves by slackening the adjustable hoop (J, a lifting-ring, b, is provided, which is securely fastened to the cover by means of a clinched staple. To prevent this liftin g-rin g from being in the way of packing one tub on another it falls into a recess provided for it. (Shown by Figs. 5 and 6.)

The adjustable binding-hoop 0 consists of a piece of ordinary hoop-iron, or it may be round iron, furnished with and attached at its two ends to a peculiar fastening device, D D, for uniting and drawing its two ends together to clamp the staves against the head B. This device D D consists of two iron ears in combination with the clamping-bolt E. These ears D D are made in a peculiar manner, to give them strength and to afford a convenient means of applying the sealing-wax. These ears D D are riveted to the adjustable hoop O at the points at d, Fig. 4, and provided with a face-plate standing in a line with the diameter of the tub. The portion of these that is riveted to the hoop'G and the face-plate through which the fastening-bolt E passes are combined with triangular side pieces, d d, Fig. 4, to add strength and to protect and partially conceal the head and nut of the fastening-bolt E, and to afford a suitable recess in which to lodge the sealing-wax c, Fig. 7. The wax may be placed over the nut or head of the bolt, or both. The space between the triangular plates d d is somewhat depressed, to provide ashouldered recess, c, to afford greater security against the displacement of the sealing-wax c.

The operation of our invention is briefly described as follows: Supposing the oover to be fastened andsealed, first turn back the slotheaded fastening-bolt E with a screw-driver just far enough to liberate the head B, but not so far as to allow the staves to open sufficieutly to allow the brine (if there be any) to escape. If the sealing-wax be applied to the head of the fastening-bolt E, which is preferable to placing it over the not end, it is only necessary to knock the wax off with the screwdriver.

One of the peculiar advantages of the adjustable hoop O is that by means of it the staves are kept brine-tight while it admits of the head B being removed.

The object of the recess in the staves in 5 which the adjustable hoop 0 works is to prevent the hoop from ever being displaced from the tub, and to vcause it to be kept always in the right position, and to save time and avoid inconvenience. By these means no labor or time is lost or is necessary to liberate or fasten the cover air-tight beyond that of a turn or two of an ordinary screw-driver.

Having thus described the construction, operation, and object of our invention, what we claim as new, and desire to secure by Letters Patent, is-

1; The combination of a tub having a recess,

0 a, cover B, inserted within the tub, and hoop 0, having on its ends projecting recessed ears D D, to take and guard the headed tighten; ing-bolt E, all constructed and employed in the manner and for the purposes described.

2. The combination of a tub provided with a recess, a, a cover, B, having a recess and liftin g-rin g, b, and double recessed fastening-ears D D, with the sealing device protection of wax or other proper material employed, in the manner and for the uses set forth. 7.

FRANK G. JOHNSON. RICHARD w. How.

\Vitnesses:

' J. AUG. FISCHER,

NATHANIEL M. MEAD. 

